side effects of b12 injections autism Methyl-B12: A Treatment for ASD with Methylation Issues Vitamin B12: A Review of
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This may explain why so many people say they feel amazing when taking vitamin B12 shots and injections even if they were taking oral forms of vitamin B12 previously
doi: 10.1093/ajcn/nqac065
Always read the label and consult your doctor for advice
